Pole erector and setter.



R. W. SCOTT. POLE BBEoToR AND sBTTBR.4

APPLICATION FILED JUNE Z5, 1909.

Patented-Jan. 24, `1911'.

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POLE ERBo'roR AND BETTER.

` APPLICATION FILED JUNE 25, 1909.

Patented Ja11.24, 1911.

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lUNITED STATES T OFFICE.

RICHARD WALTER SCOTT, OF HAMILTON, ONTARIO, CANADA, ASSIGNOR 0F ONE-HALFT0 WILLIAM J'. BOLAND,

OF DAVISVILLE, CANADA.

POLE Enne'ron AND snr'rnn.

Specification of Letters Patent.

Patented Jan. 24, 1911.

Application filed June 25, 1909. Serial No. 504,395.

To all whom it may concern:

Be 1t known that I, RICHARD lVAL'rnn Sco'rr, a citizen of the Dominionof Canada,

and resident of the city of Hamilton, county ot' lVentworth, Province ofOntario, Canada, have invented a certain new and useful Pole Erector andSetter; and I do hereby declare that the following is a full, clear, andexact description of the construction and operation of the same.

The invention relates to mechanism constructed in such a manner as toerect telephone and telegraph poles, &c., and set them upright in theirappropriate holes in a speedy safe and expeditious manner with one thirdof the help now required to erect heavy poles requiring' a large numberot' men with the ordinary pike poles.

The invention consists of an irregular strong tripod of steel bars,carried on wheels, mechanism to carry the pole, and mechanism to elevatethe pole, and power mechanism to operate the same as will be more `fullyshown hereinafter reference being had to the accompanying drawing inwhich,-

Similar letters reter to similar parts in the several views.

Figure 1, is a side elevation ot' the machine embodying my invention. Fig. 2,is a longitudinal section ot the oil cylinder to produce power tooperate the mechanism. Fig. 3, is a side elevation oi." the central part-shown in Fig. 1, on the opposite side. Fig. 4, is an end elevation.Fig. 5, is a side View of one of the wheels &c. Fig. G is a crosssection of pole and rest etc.

In the drawing 24, 211 represent a pair ot' front legs carried by twowheels 25, 25, mounted on a curved axle 3G, and 7 is a rear extensionleg, the outer end being attached to a swivel 39, pivotally secured toan axle 36, carried by a pair of smaller wheels 25 Fig. 4, the said legs24, 241 and 7, form a tripod carried on wheels 25, and 25, and at theirapex or top are secured to a steel casting' 21, as shown at Figs. 1 and1, 26 is a guide plate turned up at'the sides on which is made to restand move a slide plate 27, the parts 26, and 21, being held together bya pin 22 as shown in said Figs. 1 and L1, the said parts being strongand suitably braced.

28, 28, 28 are three pole rests attached to the slide 27 to which tosecure chains 31 which are made to pass around the pole 32 I and hold itwhile it is being erected and set i vertically in its hole.

29 is a screw made to pass through a threaded lug 3-1 secured to theslide 2T that holds the pole 32, a bevel gear 80', is attached to thelower end oit' the said screw, and made to engage with a similar bevelgear 30 on the gear shaft 33, on the outer end of which is a ratchet andpawl device with handle to operate the said parts to lower the pole 32into its appropriate place oi rest.

Mechanism for raising the p0Ze.-The means for raising the pole previousto erecting it may be described as follows. 1, Fig. 1 is a cylinder, oneend secured to a steel casting (3 attached in any convenient manner tothe leg 7, the means shown is by a pin S, made to pass through both thecasting and end 15 of the cylinder as shown at Fig. 1. A piston rod 12,being secured to the piston 17 extends out of the cylinder 1, andterminates in a hook to which is fastened one end o1 a chain 11, theother end of said chain being secured to a pin 35, in the curved chainrest 20, attached to the casting 21. A pump 2, is secured to thecylinder l, and is provided with a pump plunger 3, inside of it, ahandle 9, to operate the plunger, a suction ball inlet valve 18 on theupper end ot the pump, an oil pipe 16 connectino the said Valve 18 withthe cylin-` der 1, and an outlet ball valve 19 communieating with theinterior of said cylinder. The cylinder 1, to which the pump is attachedas shown at Figs. l and 2, is provided with an inlet 5, stopped with afilling plug, by which the cylinder is supplied w1th oil, and it is alsoprovided with a relief valve et, at one end the same being connected tothe inlet 5, by a small pipe or tube 10 for the return of oil to thecylinder 1. 17 is the piston inside of the cylinder, to which the pistonrod 12 is attached, said piston rod being attached to the chain 11 whichextends to the pin 35 of thc chain rest 20 at the head portion of thetripod 211, 7.

It will be observed that the pole, 32, is secured on the lone slide, 27,in a horizontal position, then carried by the truck wheels to theexcavated hole prepared for it, when the butt is over the hole, the poleis gradually elevated to a vertical position as in Fig. 1, by workingthe pump handle, 9, of the cylinder, l, which produces enough power topull on the chain, 11, until the pole is in a vertical position over thehole, when by means of the screw, 29, and bevel gears operated by theratchet and handle 23, the pole, 32, is gently lowered into the holeprepared for it, the power for raising the pole being eX- plainedhereinafter.

It will be observed that the apparatus is capable of being easily movedabout on the four wheels, and to facilitate that I arrange to have thetwo front legs 24, 211: provided each with a knuckle joint 38, so as thebottom of each leg can be elevated slightly above the ground when movingthe apparatus on the Wheels 25, from place to place. It may further beobserved that in the practical application of applying power to themechanism to raise the pole to a vertical position after being placed onthe long slide plate horizontally it will be assumed the cylinder isfull of oil; by raising the plunger of the pump, the oil is drawn fromthe back of the `piston, and on the reverse stroke of the plunger, theoil is forced in front of the piston pushing it back, the movementcontinued back and forth until the piston reaches the rear end of thecylinder thus bringing the pole fro-m a horizontal to a verticalposition, now, by opening the relief valve, the oil flows back to therear end of the cylinder allowing the piston to be pulled forward readyfor operating on another pole to be erected. It will be noted that asthe cylinder is always full of oil there is no waste unless therehappens to be a leak which can easilybe repaired. It may further beexplained that the essential feature of the ratchet, 23, (with handle)on the shaft, 33, is for the purpose of causing the bevel gear, 30, toengage with bevel gear, 30', on the screw, 29, and rotate the same,allowing the slide, 27, to which the pole, 32,

is attached, to be lowered gradually into the h ole prepared for it,when the pole is erected in a vertical position.

Having thus described my device and its advantages, what I claim as myinvention and desire to secure by Letters Patent, is"

l. In a pole erector and setter, a tripod comprising adjustable frontlegs hinged at the top, and united by a curved axle, carrying a pair oflarge wheels, the rear lleg elongated and united to a swivel attached toan axle carrying a pair of rear wheels, and mechanism secured to thetripod to support and erect a pole.

2. In combination with a tripod, of the class specified, a steel casting(2l), hinged thereto, a guide plate attached to the said casting, aslide plate made to move in the same, a series of pole rests secured tothe said slide plate to carry and move t-he pole, and mechanism to raiseand set it.

3. In a device of the class specified in combination with a tripod, apump adjustably attached to the rear leg of the tripod, a connectionbetween the piston of the cylinder and the chain rest (20) and means toelevate the pole.

4C. In a device of the class specified in combination with the guideplate (26) and slide plate (27), a screw (29), made to pass through athreaded lug (34C), secured to said slide plate, a bevel gear (30')afiixed on the end of said screw, a bevel gear (30) on the end of a gearshaft (33), to engage withthe rst mentioned bevel gear, a ratchet andpawl attached to the gear shaft to lower the pole to its place of rest.

Dated at Hamilton, Ont. the 12th day of

